All-in-one computer



FIG. 1 is a top rear perspective view of an all-in-one computer showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is another top rear perspective view with the stand in an open position.

The broken lines represent portions of the all-in-one computer that form no part of the claimed design. 

CLAIM The ornamental design for an all-in-one computer, as shown and described. 